“I can't just sit at my desk and let this web of weirdness spin around me. (That describes a lot of jobs, I realize, but this is potentially a special kind of magick-with-a-k weirdness.”

“Maybe I'll just go ahead and buy her the Tufte book. I'll bring it wrapped in brown paper. Wait- is that weird? It's an expensive book. Maybe there's a low-key paperback edition. I could buy it on Amazon. That's stupid, I work at a bookstore. (Could Amazon ship it fast enough?)”

“I'm going to put the moves on her,' he says gravely. 'Things might get weird.' He says it like a commando setting up a midnight raid. Like: Sure, this is going to be extraordinarily dangerous, but don't worry. I've done it before.”

“Neel cuts in: "Where'd you grow up?""Palo Alto," she says. From there to Stanford to Google: for a girl obsessed with the outer limits of human potential, Kat has stayed pretty close to home. Neel nods knowingly. "The suburban mind cannot comprehend the emergent complexity of a New York sidewalk.""I don't know about that," Kat says, narrowing her eyes. "I'm pretty good with complexity.""See, I know what you're thinking," Neel says, shaking his head."You're thinking it's just an agent-based simulation, and everybody out here follows a pretty simple set of rules"-- Kat is nodding--"and if you can figure out those rules, you can model it. You can simulate the street, then the neighborhood, then the whole city. Right?""Exactly. I mean, sure, I don't know what the rules are yet, but I could experiment and figure them out, and then it would be trivial--" "Wrong," Neel says, honking like a game-show buzzer. "You can't do it. Even if you know the rules-- and by the way, there are no rules--but even if there were, you can't model it. You know why?"My best friend and my girlfriend are sparring over simulations. I can only sit back and listen. Kat frowns. "Why?""You don't have enough memory.""Oh, come on--""Nope. You could never hold it all in memory. No computer's big enough. Not even your what's-it-called--""The Big Box.""That's the one. It's not big enough. This box--" Neel stretches out his hands, encompasses the sidewalk, the park, the streets beyond--"is bigger."The snaking crowd surges forward.”

“Then: I google "time-series visualization" and start work on a new version of my model, thinking that maybe I can impress her with a prototype. I am really into the kind of girl you can impress with a prototype.”

“I'd sit at my kitchen table and start scanning help-wanted ads on my laptop, but then a browser tab would blink and I'd get distracted and follow a link to a long magazine article about genetically modified wine grapes. Too long, actually, so I'd add it to my reading list. Then I'd follow another link to a book review. I'd add the review to my reading list, too, then download the first chapter of the book—third in a series about vampire police. Then, help-wanted ads forgotten, I'd retreat to the living room, put my laptop on my belly, and read all day. I had a lot of free time.”

“But I kept at it with the help-wanted ads. My standards were sliding swiftly. At first I had insisted I would only work at a company with a mission I believed in. Then I thought maybe it would be fine as long as I was learning something new. After that I decided it just couldn't be evil. Now I was carefully delineating my personal definition of evil.”